Date: Sun, 25 Feb 2007 23:28:07 -0800 From: "Kip Macy" <kip.macy@gmail.com> To: "Jack Vogel" <jfvogel@gmail.com> Cc: freebsd-net <freebsd-net@freebsd.org>, Andre Oppermann <andre@freebsd.org> Subject: Re: improved TSO interface needed Message-ID: <b1fa29170702252328o470ce804n893093b6362c4464@mail.gmail.com> In-Reply-To: <2a41acea0702252325k4ec64d59m95a63bebaf6ea30c@mail.gmail.com> References: <b1fa29170702242255i323077e8t3e5cfe696431c50b@mail.gmail.com> <45E19B54.9060007@freebsd.org> <b1fa29170702250641w3b365a97u62f066087d1bffe8@mail.gmail.com> <45E1A3B4.7090002@freebsd.org> <2a41acea0702252053v2357b5f5tefbcf58375be1a2f@mail.gmail.com> <b1fa29170702252110h3217bf82pdc9a3b46561b1671@mail.gmail.com> <2a41acea0702252325k4ec64d59m95a63bebaf6ea30c@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> 64K is the max, and I believe that is taking into account the headers.
> What size are you seeing that is larger? Even if an mbuf chain comes
> down that large, it does NOT form a single packet, it is packetized by
> the hardware into MTU size, as I said, on the wire, ie as the receiver
> sees it, its just a lot of packets. The only question is whether the
> transmit hardware can handle it. Do you have eivdence of some
> hardware that supports TSO in the driver that cant??
I see this when torture testing a couple of different 10GigE cards
running at line rate.
-Kip
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?b1fa29170702252328o470ce804n893093b6362c4464>